PartBlet`slearnTurnrightCrossingNocarsNoparkingNobikesGostraightTurnleftTrafficSignsWhatarethese?trafficlights交通信号灯redlightredlightyellowlightyellowlightgreenlightgreenlightWhatdotheymean?greenlightgoatagreenlightredlightstopandwaitataredlightDon'tgoataredlight.Youmust（必须）stopandwait.yellowyellowlightslowdownandstopatayellowlightDon'tgoatayellowlight.Youmust（必须）slowdownandstop.trafficrules（规则）trafficlightsRememberthetrafficrules.Lookatthetrafficlights.redlightyellowlightgreenlightGoatagreenlight.Stopandwaitataredlight.slowdownandstopatayellowlight.Remember（记住）thetrafficrules.thetrafficrules.atthetrafficlights.atayellowlight.atagreenlight.ataredlight.1.Look5.Remember（记住）3.Stop4slowdown2.GoLook,thelightis____.Look,thelightis____.CanIgo?CanIgo?Nowthelightis______.Nowthelightis______.Thelightis______.Thelightis______.redredyellowyellowgreengreenNo,youcan’t.Youmust__________and_______.No,youcan’t.Youmust__________and_______.No,youcan’t.Youmust_____and_______.No,youcan’t.Youmust_____and_______.Yes,youcan.Yes,youcan.CanIgo?CanIgo?CanIgo?CanIgo?stopstopwaitwaitslowdownwaitwaitLet`slearn→必须
